Heat-sensitive medium for separating species in a separating channel and use thereof
US6830670B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 1, 2001 |
| Grant date | Dec 14, 2004 |
| Priority date | — |
| Expiry date | Oct 1, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/44747
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A medium comprises an electrolyte wherein is dissolved at least an assembly of block copolymers characterized in that the block copolymers: are present in the electrolyte at a concentration level to provide the medium with the property of reversibly passing from a state of viscosity V1, obtained at a temperature T1, to a viscosity state V2 greater by at least 100% than V1, obtained at a temperature T2, and comprise in their structure at least: two non-contiguous polymeric segments having in the electrolyte a lower critical solubility temperature (LCST) and having an average number of atoms along their skeleton more than 50; and a polymeric segment soluble in the electrolyte at temperatures T1 and T2. The invention also concerns the use of the medium for separating analytes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.